Gladiolus 'Black Jack' Deep Red Bulbs | Tall Sword Lily for Cut Flowers & Pollinator Gardens

Add bold drama and rich color to your summer garden with Gladiolus 'Black Jack', a striking tall Sword Lily prized for its deep burgundy-red blooms. Often appearing almost black in certain lighting, this elegant gladiolus creates a stunning focal point in flower beds, borders, and fresh-cut arrangements.

Blooming from mid to late summer, 'Black Jack' produces tall, sturdy flower spikes lined with velvety, dark red blossoms. Its dramatic coloration pairs beautifully with lighter flowers and adds sophistication to cottage gardens, pollinator plantings, and bouquet gardens. The long-lasting blooms are excellent for cut flower arrangements and attract butterflies, bees, and hummingbirds throughout the season.

Whether planted in mass groupings or mixed with contrasting colors, Gladiolus 'Black Jack' delivers unforgettable summer color and architectural beauty.

Key Features

• Deep burgundy-red flowers with near-black appearance
• Tall flower spikes perfect for cutting gardens
• Exceptional vase life for bouquets and arrangements
• Attracts butterflies, bees, and hummingbirds
• Thrives in full sun locations
• Easy-to-grow perennial bulb
• Excellent focal point in mixed borders
• Long-lasting summer blooms

Plant Details

• Botanical Name: Gladiolus 'Black Jack'
• Common Name: Sword Lily
• Plant Type: Perennial Bulb (Corm)
• Flower Color: Deep Burgundy Red
• Foliage Color: Green
• Mature Height: 42–60 Inches
• Spread: 6–12 Inches
• Growth Habit: Upright Clumping
• Bloom Season: Mid to Late Summer
• Light Requirements: Full Sun
• Water Needs: Average
• Soil Requirements: Well-Drained Soil
• Hardiness Zones: 7–10 (Lift corms in colder climates)
• Characteristics: Deer Resistant, Pollinator Friendly, Long Blooming, Excellent Cut Flower

Garden Uses

Cut flower gardens, cottage gardens, pollinator gardens, perennial borders, mass plantings, dramatic color displays, backyard bouquet gardens, summer landscape focal points.

Companion Plants

Pair Gladiolus 'Black Jack' with White Prosperity Gladiolus, Sapporo Gladiolus, Shasta Daisy, Echinacea, Salvia, Lavender, Yarrow, and Ornamental Grasses. The deep red blooms create stunning contrast with white, yellow, silver, and purple flowering companions.

Planting & Care

• Plant corms in spring after danger of frost has passed
• Plant 4–6 inches deep and 4–6 inches apart
• Choose a sunny location with well-drained soil
• Water regularly during active growth
• Stake stems if necessary in exposed locations
• Remove spent flowers to encourage continued blooming
• Allow foliage to naturally die back after flowering
• Lift and store corms in winter in zones colder than USDA Zone 7

For extended blooms throughout summer, plant additional corms every two weeks through early summer.

Shipping Information

Plant Condition

• Ships as healthy bareroot corms ready for planting

Shipping Notes

• Orders begin shipping in MARCH
• Carefully packaged for safe transit
• Free USPS Ground shipping on qualifying orders over $35
• Shipping schedules may be adjusted during extreme temperatures

Care Guarantee

We guarantee healthy bulbs upon arrival. If your order arrives damaged, contact us within 48 hours with photos of the plant and packaging for a replacement or refund.